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<div class="title">LPUART DMA Driver<div class="ingroups"><a class="el" href="group__lpuart__driver.html">LPUART Driver</a></div></div> </div>
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Files</h2></td></tr>
<tr class="memitem:fsl__lpuart__dma_8h"><td class="memItemLeft" align="right" valign="top">file &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="fsl__lpuart__dma_8h.html">fsl_lpuart_dma.h</a></td></tr>
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Data Structures</h2></td></tr>
<tr class="memitem:struct__lpuart__dma__handle"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#struct__lpuart__dma__handle">lpuart_dma_handle_t</a></td></tr>
<tr class="memdesc:struct__lpuart__dma__handle"><td class="mdescLeft">&#160;</td><td class="mdescRight">LPUART DMA handle. <a href="group__lpuart__dma__driver.html#struct__lpuart__dma__handle">More...</a><br/></td></tr>
<tr class="separator:struct__lpuart__dma__handle"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Typedefs</h2></td></tr>
<tr class="memitem:ga01b0dcde73780ef8241f9d6d8fbfd32a"><td class="memItemLeft" align="right" valign="top">typedef void(*&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#ga01b0dcde73780ef8241f9d6d8fbfd32a">lpuart_dma_transfer_callback_t</a> )(LPUART_Type *base, lpuart_dma_handle_t *handle, status_t status, void *userData)</td></tr>
<tr class="memdesc:ga01b0dcde73780ef8241f9d6d8fbfd32a"><td class="mdescLeft">&#160;</td><td class="mdescRight">LPUART transfer callback function. <a href="#ga01b0dcde73780ef8241f9d6d8fbfd32a">More...</a><br/></td></tr>
<tr class="separator:ga01b0dcde73780ef8241f9d6d8fbfd32a"><td class="memSeparator" colspan="2">&#160;</td></tr>
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EDMA transactional</h2></td></tr>
<tr class="memitem:gae756f6d53da1fa590440beadf32ab880"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#gae756f6d53da1fa590440beadf32ab880">LPUART_TransferCreateHandleDMA</a> (LPUART_Type *base, lpuart_dma_handle_t *handle, <a class="el" href="group__lpuart__dma__driver.html#ga01b0dcde73780ef8241f9d6d8fbfd32a">lpuart_dma_transfer_callback_t</a> callback, void *userData, <a class="el" href="group__dma__driver.html#structdma__handle__t">dma_handle_t</a> *txDmaHandle, <a class="el" href="group__dma__driver.html#structdma__handle__t">dma_handle_t</a> *rxDmaHandle)</td></tr>
<tr class="memdesc:gae756f6d53da1fa590440beadf32ab880"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initializes the LPUART handle which is used in transactional functions. <a href="#gae756f6d53da1fa590440beadf32ab880">More...</a><br/></td></tr>
<tr class="separator:gae756f6d53da1fa590440beadf32ab880"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga53f772ad348b2a8f2c002e02da77a3b2"><td class="memItemLeft" align="right" valign="top">status_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#ga53f772ad348b2a8f2c002e02da77a3b2">LPUART_TransferSendDMA</a> (LPUART_Type *base, lpuart_dma_handle_t *handle, <a class="el" href="group__lpuart__driver.html#structlpuart__transfer__t">lpuart_transfer_t</a> *xfer)</td></tr>
<tr class="memdesc:ga53f772ad348b2a8f2c002e02da77a3b2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sends data using DMA. <a href="#ga53f772ad348b2a8f2c002e02da77a3b2">More...</a><br/></td></tr>
<tr class="separator:ga53f772ad348b2a8f2c002e02da77a3b2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad5051be482f51cc218fc495ebcdaa9cc"><td class="memItemLeft" align="right" valign="top">status_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#gad5051be482f51cc218fc495ebcdaa9cc">LPUART_TransferReceiveDMA</a> (LPUART_Type *base, lpuart_dma_handle_t *handle, <a class="el" href="group__lpuart__driver.html#structlpuart__transfer__t">lpuart_transfer_t</a> *xfer)</td></tr>
<tr class="memdesc:gad5051be482f51cc218fc495ebcdaa9cc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Receives data using DMA. <a href="#gad5051be482f51cc218fc495ebcdaa9cc">More...</a><br/></td></tr>
<tr class="separator:gad5051be482f51cc218fc495ebcdaa9cc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga235323a71e7f1dbfd7f0e7f2d184d81b"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#ga235323a71e7f1dbfd7f0e7f2d184d81b">LPUART_TransferAbortSendDMA</a> (LPUART_Type *base, lpuart_dma_handle_t *handle)</td></tr>
<tr class="memdesc:ga235323a71e7f1dbfd7f0e7f2d184d81b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Aborts the sent data using DMA. <a href="#ga235323a71e7f1dbfd7f0e7f2d184d81b">More...</a><br/></td></tr>
<tr class="separator:ga235323a71e7f1dbfd7f0e7f2d184d81b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad81ac95083df90de12e2987ed5f31c9c"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#gad81ac95083df90de12e2987ed5f31c9c">LPUART_TransferAbortReceiveDMA</a> (LPUART_Type *base, lpuart_dma_handle_t *handle)</td></tr>
<tr class="memdesc:gad81ac95083df90de12e2987ed5f31c9c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Aborts the received data using DMA. <a href="#gad81ac95083df90de12e2987ed5f31c9c">More...</a><br/></td></tr>
<tr class="separator:gad81ac95083df90de12e2987ed5f31c9c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf18bab57347f88934234a63e48c3ec33"><td class="memItemLeft" align="right" valign="top">status_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#gaf18bab57347f88934234a63e48c3ec33">LPUART_TransferGetSendCountDMA</a> (LPUART_Type *base, lpuart_dma_handle_t *handle, uint32_t *count)</td></tr>
<tr class="memdesc:gaf18bab57347f88934234a63e48c3ec33"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the number of bytes that have been written to LPUART TX register. <a href="#gaf18bab57347f88934234a63e48c3ec33">More...</a><br/></td></tr>
<tr class="separator:gaf18bab57347f88934234a63e48c3ec33"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad41a4d7899f0f8314591fdd551d29e23"><td class="memItemLeft" align="right" valign="top">status_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#gad41a4d7899f0f8314591fdd551d29e23">LPUART_TransferGetReceiveCountDMA</a> (LPUART_Type *base, lpuart_dma_handle_t *handle, uint32_t *count)</td></tr>
<tr class="memdesc:gad41a4d7899f0f8314591fdd551d29e23"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the number of bytes that have been received. <a href="#gad41a4d7899f0f8314591fdd551d29e23">More...</a><br/></td></tr>
<tr class="separator:gad41a4d7899f0f8314591fdd551d29e23"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<hr/><h2 class="groupheader">Data Structure Documentation</h2>
<a name="struct__lpuart__dma__handle" id="struct__lpuart__dma__handle"></a>
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<td class="memname">struct _lpuart_dma_handle</td>
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<tr><td colspan="2"><h3>Data Fields</h3></td></tr>
<tr class="memitem:a09232c7434d5e4ac726bc2506806069c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__lpuart__dma__driver.html#ga01b0dcde73780ef8241f9d6d8fbfd32a">lpuart_dma_transfer_callback_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#a09232c7434d5e4ac726bc2506806069c">callback</a></td></tr>
<tr class="memdesc:a09232c7434d5e4ac726bc2506806069c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Callback function. <a href="#a09232c7434d5e4ac726bc2506806069c">More...</a><br/></td></tr>
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<tr class="memitem:a78faeb01b6deb36c4bbbaf3a03a99af7"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#a78faeb01b6deb36c4bbbaf3a03a99af7">userData</a></td></tr>
<tr class="memdesc:a78faeb01b6deb36c4bbbaf3a03a99af7"><td class="mdescLeft">&#160;</td><td class="mdescRight">LPUART callback function parameter. <a href="#a78faeb01b6deb36c4bbbaf3a03a99af7">More...</a><br/></td></tr>
<tr class="separator:a78faeb01b6deb36c4bbbaf3a03a99af7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a964f2f663ba6644250d6e311e74e0d54"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#a964f2f663ba6644250d6e311e74e0d54">rxDataSizeAll</a></td></tr>
<tr class="memdesc:a964f2f663ba6644250d6e311e74e0d54"><td class="mdescLeft">&#160;</td><td class="mdescRight">Size of the data to receive. <a href="#a964f2f663ba6644250d6e311e74e0d54">More...</a><br/></td></tr>
<tr class="separator:a964f2f663ba6644250d6e311e74e0d54"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a86d574327f76e9f6ca5ba59b69f2aaed"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#a86d574327f76e9f6ca5ba59b69f2aaed">txDataSizeAll</a></td></tr>
<tr class="memdesc:a86d574327f76e9f6ca5ba59b69f2aaed"><td class="mdescLeft">&#160;</td><td class="mdescRight">Size of the data to send out. <a href="#a86d574327f76e9f6ca5ba59b69f2aaed">More...</a><br/></td></tr>
<tr class="separator:a86d574327f76e9f6ca5ba59b69f2aaed"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa6b9d2686f4812180ce77dfe6c2a6117"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__dma__driver.html#structdma__handle__t">dma_handle_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#aa6b9d2686f4812180ce77dfe6c2a6117">txDmaHandle</a></td></tr>
<tr class="memdesc:aa6b9d2686f4812180ce77dfe6c2a6117"><td class="mdescLeft">&#160;</td><td class="mdescRight">The DMA TX channel used. <a href="#aa6b9d2686f4812180ce77dfe6c2a6117">More...</a><br/></td></tr>
<tr class="separator:aa6b9d2686f4812180ce77dfe6c2a6117"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aee2f2563ecb247c5757291d9f8979475"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__dma__driver.html#structdma__handle__t">dma_handle_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#aee2f2563ecb247c5757291d9f8979475">rxDmaHandle</a></td></tr>
<tr class="memdesc:aee2f2563ecb247c5757291d9f8979475"><td class="mdescLeft">&#160;</td><td class="mdescRight">The DMA RX channel used. <a href="#aee2f2563ecb247c5757291d9f8979475">More...</a><br/></td></tr>
<tr class="separator:aee2f2563ecb247c5757291d9f8979475"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:afa8891571f2db1e20c1d594f6cfd3972"><td class="memItemLeft" align="right" valign="top">volatile uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#afa8891571f2db1e20c1d594f6cfd3972">txState</a></td></tr>
<tr class="memdesc:afa8891571f2db1e20c1d594f6cfd3972"><td class="mdescLeft">&#160;</td><td class="mdescRight">TX transfer state. <a href="#afa8891571f2db1e20c1d594f6cfd3972">More...</a><br/></td></tr>
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<tr class="memitem:a73c466f909c820e0da0cd106ed64742e"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a73c466f909c820e0da0cd106ed64742e"></a>
volatile uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__lpuart__dma__driver.html#a73c466f909c820e0da0cd106ed64742e">rxState</a></td></tr>
<tr class="memdesc:a73c466f909c820e0da0cd106ed64742e"><td class="mdescLeft">&#160;</td><td class="mdescRight">RX transfer state. <br/></td></tr>
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<h4 class="groupheader">Field Documentation</h4>
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<td class="memname"><a class="el" href="group__lpuart__dma__driver.html#ga01b0dcde73780ef8241f9d6d8fbfd32a">lpuart_dma_transfer_callback_t</a> lpuart_dma_handle_t::callback</td>
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<td class="memname">void* lpuart_dma_handle_t::userData</td>
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<td class="memname">size_t lpuart_dma_handle_t::rxDataSizeAll</td>
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<td class="memname">size_t lpuart_dma_handle_t::txDataSizeAll</td>
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<td class="memname"><a class="el" href="group__dma__driver.html#structdma__handle__t">dma_handle_t</a>* lpuart_dma_handle_t::txDmaHandle</td>
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<td class="memname"><a class="el" href="group__dma__driver.html#structdma__handle__t">dma_handle_t</a>* lpuart_dma_handle_t::rxDmaHandle</td>
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<td class="memname">volatile uint8_t lpuart_dma_handle_t::txState</td>
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<h2 class="groupheader">Typedef Documentation</h2>
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<td class="memname">typedef void(* lpuart_dma_transfer_callback_t)(LPUART_Type *base, lpuart_dma_handle_t *handle, status_t status, void *userData)</td>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">void LPUART_TransferCreateHandleDMA </td>
<td>(</td>
<td class="paramtype">LPUART_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpuart_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__lpuart__dma__driver.html#ga01b0dcde73780ef8241f9d6d8fbfd32a">lpuart_dma_transfer_callback_t</a>&#160;</td>
<td class="paramname"><em>callback</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>userData</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__dma__driver.html#structdma__handle__t">dma_handle_t</a> *&#160;</td>
<td class="paramname"><em>txDmaHandle</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__dma__driver.html#structdma__handle__t">dma_handle_t</a> *&#160;</td>
<td class="paramname"><em>rxDmaHandle</em>&#160;</td>
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<td>)</td>
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<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">base</td><td>LPUART peripheral base address. </td></tr>
<tr><td class="paramname">handle</td><td>Pointer to lpuart_dma_handle_t structure. </td></tr>
<tr><td class="paramname">callback</td><td>Callback function. </td></tr>
<tr><td class="paramname">userData</td><td>User data. </td></tr>
<tr><td class="paramname">txDmaHandle</td><td>User-requested DMA handle for TX DMA transfer. </td></tr>
<tr><td class="paramname">rxDmaHandle</td><td>User-requested DMA handle for RX DMA transfer. </td></tr>
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<td class="memname">status_t LPUART_TransferSendDMA </td>
<td>(</td>
<td class="paramtype">LPUART_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpuart_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__lpuart__driver.html#structlpuart__transfer__t">lpuart_transfer_t</a> *&#160;</td>
<td class="paramname"><em>xfer</em>&#160;</td>
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<p>This function sends data using DMA. This is a non-blocking function, which returns right away. When all data is sent, the send callback function is called.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">base</td><td>LPUART peripheral base address. </td></tr>
<tr><td class="paramname">handle</td><td>LPUART handle pointer. </td></tr>
<tr><td class="paramname">xfer</td><td>LPUART DMA transfer structure. See <a class="el" href="group__lpuart__driver.html#structlpuart__transfer__t" title="LPUART transfer structure. ">lpuart_transfer_t</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">kStatus_Success</td><td>if succeed, others failed. </td></tr>
<tr><td class="paramname">kStatus_LPUART_TxBusy</td><td>Previous transfer on going. </td></tr>
<tr><td class="paramname">kStatus_InvalidArgument</td><td>Invalid argument. </td></tr>
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</dd>
</dl>
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<td class="memname">status_t LPUART_TransferReceiveDMA </td>
<td>(</td>
<td class="paramtype">LPUART_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpuart_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__lpuart__driver.html#structlpuart__transfer__t">lpuart_transfer_t</a> *&#160;</td>
<td class="paramname"><em>xfer</em>&#160;</td>
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<td>)</td>
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<p>This function receives data using DMA. This is a non-blocking function, which returns right away. When all data is received, the receive callback function is called.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">base</td><td>LPUART peripheral base address. </td></tr>
<tr><td class="paramname">handle</td><td>Pointer to lpuart_dma_handle_t structure. </td></tr>
<tr><td class="paramname">xfer</td><td>LPUART DMA transfer structure. See <a class="el" href="group__lpuart__driver.html#structlpuart__transfer__t" title="LPUART transfer structure. ">lpuart_transfer_t</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">kStatus_Success</td><td>if succeed, others failed. </td></tr>
<tr><td class="paramname">kStatus_LPUART_RxBusy</td><td>Previous transfer on going. </td></tr>
<tr><td class="paramname">kStatus_InvalidArgument</td><td>Invalid argument. </td></tr>
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</dd>
</dl>
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<td class="memname">void LPUART_TransferAbortSendDMA </td>
<td>(</td>
<td class="paramtype">LPUART_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpuart_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>&#160;</td>
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<p>This function aborts send data using DMA.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">base</td><td>LPUART peripheral base address </td></tr>
<tr><td class="paramname">handle</td><td>Pointer to lpuart_dma_handle_t structure </td></tr>
</table>
</dd>
</dl>
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<td class="memname">void LPUART_TransferAbortReceiveDMA </td>
<td>(</td>
<td class="paramtype">LPUART_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpuart_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>&#160;</td>
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<td>)</td>
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<p>This function aborts the received data using DMA.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">base</td><td>LPUART peripheral base address </td></tr>
<tr><td class="paramname">handle</td><td>Pointer to lpuart_dma_handle_t structure </td></tr>
</table>
</dd>
</dl>
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<td class="memname">status_t LPUART_TransferGetSendCountDMA </td>
<td>(</td>
<td class="paramtype">LPUART_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpuart_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t *&#160;</td>
<td class="paramname"><em>count</em>&#160;</td>
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<td></td>
<td>)</td>
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<p>This function gets the number of bytes that have been written to LPUART TX register by DMA.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">base</td><td>LPUART peripheral base address. </td></tr>
<tr><td class="paramname">handle</td><td>LPUART handle pointer. </td></tr>
<tr><td class="paramname">count</td><td>Send bytes count. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">kStatus_NoTransferInProgress</td><td>No send in progress. </td></tr>
<tr><td class="paramname">kStatus_InvalidArgument</td><td>Parameter is invalid. </td></tr>
<tr><td class="paramname">kStatus_Success</td><td>Get successfully through the parameter <code>count</code>; </td></tr>
</table>
</dd>
</dl>
</div>
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<td class="memname">status_t LPUART_TransferGetReceiveCountDMA </td>
<td>(</td>
<td class="paramtype">LPUART_Type *&#160;</td>
<td class="paramname"><em>base</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">lpuart_dma_handle_t *&#160;</td>
<td class="paramname"><em>handle</em>, </td>
</tr>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t *&#160;</td>
<td class="paramname"><em>count</em>&#160;</td>
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<td>)</td>
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<p>This function gets the number of bytes that have been received.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">base</td><td>LPUART peripheral base address. </td></tr>
<tr><td class="paramname">handle</td><td>LPUART handle pointer. </td></tr>
<tr><td class="paramname">count</td><td>Receive bytes count. </td></tr>
</table>
</dd>
</dl>
<dl class="retval"><dt>Return values</dt><dd>
<table class="retval">
<tr><td class="paramname">kStatus_NoTransferInProgress</td><td>No receive in progress. </td></tr>
<tr><td class="paramname">kStatus_InvalidArgument</td><td>Parameter is invalid. </td></tr>
<tr><td class="paramname">kStatus_Success</td><td>Get successfully through the parameter <code>count</code>; </td></tr>
</table>
</dd>
</dl>
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